The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 2021
Filed:
Jun. 30, 2017
Ipg Photonics Corporation, Oxford, MA (US);
Andrey Mashkin, Oxford, MA (US);
Valentin Fomin, Oxford, MA (US);
Fedor Shcherbina, Oxford, MA (US);
Alexander Dronov, Oxford, MA (US);
Andrey Abramov, Oxford, MA (US);
Vadim Mironov, Oxford, MA (US);
Eugene Scherbakov, Oxford, MA (US);
IPG PHOTONICS CORPORATION, Oxford, MA (US);
Abstract
A method of inducing light losses at a parasitic wavelength in a fiber laser system includes providing a wavelength discriminator (WD) spaced from and between feeding and process fibers or from the end output of the feeding fiber so as to induce losses of light at parasitic wavelength. The device implementing the disclosed method is configured with a laser source, the delivery fiber and WD spaced at a distance between the surface to be treated and the end of the delivery fiber, wherein the WD receives the parasitic light over free space and is configured as a dichroic filter inducing losses to the light at the parasitic wavelength.